这是一个验证贴，因为社区文档是错误的。

先说结论

Flink1.15仅支持ZooKeeper3.5/3.6，不再支持3.4。FLINK-25146 Drop support for Zookeeper 3.4

社区文档

其中的ZooKeeper Versions描述默认使用3.4，可以自行调整为3.5。从文档上来看自1.11版本就添加了这段描述，到目前最新稳定版本(1.16.0)依然是这么描述的。但是实际我们在flink-1.15.0/lib目录中只看到了flink-shaded-zookeeper-3.5.9.jar，在opt目录中看到了flink-shaded-zookeeper-3.6.3.jar，即默认使用3.5版本，并在opt目录中放置了3.6版本。

其实在1.15的 ReleaseNote 中明确写了，不再支持3.4，只是还是有点不死心，做了如下的验证。

Release notes - Flink 1.15

Drop support for Zookeeper 3.4 #

FLINK-25146 #

Support for using Zookeeper 3.4 for HA has been dropped. Users relying on Zookeeper need to upgrade to 3.5/3.6. By default Flink now uses a Zookeeper 3.5 client.

验证一

那么我们是否可以将3.4的版本（flink-1.13.3/lib/flink-shaded-zookeeper-3.4.14.jar）放置到flink-1.15.3/lib目录中，在1.15版本中使用3.4版本呢？

不能

如果我们这么做，将会遇到 java.lang.ClassNotFoundException: org.apache.flink.shaded.curator5.org.apache.curator.framework.api.ACLProvider ，完整堆栈如下：

 1 2022-12-08 18:18:05,693 INFO  org.apache.flink.runtime.rpc.akka.AkkaRpcService             [] - Stopping Akka RPC service.

 2 2022-12-08 18:18:05,734 INFO  akka.remote.RemoteActorRefProvider$RemotingTerminator        [] - Shutting down remote daemon.

 3 2022-12-08 18:18:05,736 INFO  akka.remote.RemoteActorRefProvider$RemotingTerminator        [] - Remote daemon shut down; proceeding with flushing remote transports.

 4 2022-12-08 18:18:05,758 INFO  akka.remote.RemoteActorRefProvider$RemotingTerminator        [] - Remoting shut down.

 5 2022-12-08 18:18:05,782 INFO  org.apache.flink.runtime.rpc.akka.AkkaRpcService             [] - Stopped Akka RPC service.

 6 2022-12-08 18:18:05,782 ERROR org.apache.flink.runtime.entrypoint.ClusterEntrypoint        [] - Could not start cluster entrypoint YarnApplicationClusterEntryPoint.

 7 org.apache.flink.runtime.entrypoint.ClusterEntrypointException: Failed to initialize the cluster entrypoint YarnApplicationClusterEntryPoint.

 8     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.startCluster(ClusterEntrypoint.java:250) ~[flink-dist-1.15.3.jar:1.15.3]

 9     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.runClusterEntrypoint(ClusterEntrypoint.java:711) [flink-dist-1.15.3.jar:1.15.3]

10     at org.apache.flink.yarn.entrypoint.YarnApplicationClusterEntryPoint.main(YarnApplicationClusterEntryPoint.java:112) [flink-dist-1.15.3.jar:1.15.3]

11 Caused by: java.lang.NoClassDefFoundError: org/apache/flink/shaded/curator5/org/apache/curator/framework/api/ACLProvider

12     at org.apache.flink.runtime.highavailability.HighAvailabilityServicesUtils.createZooKeeperHaServices(HighAvailabilityServicesUtils.java:90) ~[flink-dist-1.15.3.jar:1.15.3]

13     at org.apache.flink.runtime.highavailability.HighAvailabilityServicesUtils.createHighAvailabilityServices(HighAvailabilityServicesUtils.java:140) ~[flink-dist-1.15.3.jar:1.15.3]

14     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.createHaServices(ClusterEntrypoint.java:427) ~[flink-dist-1.15.3.jar:1.15.3]

15     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.initializeServices(ClusterEntrypoint.java:376) ~[flink-dist-1.15.3.jar:1.15.3]

16     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.runCluster(ClusterEntrypoint.java:277) ~[flink-dist-1.15.3.jar:1.15.3]

17     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.lambda$startCluster$1(ClusterEntrypoint.java:227) ~[flink-dist-1.15.3.jar:1.15.3]

18     at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_202]

19     at javax.security.auth.Subject.doAs(Subject.java:422) ~[?:1.8.0_202]

20     at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1875) ~[hadoop-common-3.0.0-cdh6.3.2.jar:?]

21     at org.apache.flink.runtime.security.contexts.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41) ~[flink-dist-1.15.3.jar:1.15.3]

22     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.startCluster(ClusterEntrypoint.java:224) ~[flink-dist-1.15.3.jar:1.15.3]

23     ... 2 more

24 Caused by: java.lang.ClassNotFoundException: org.apache.flink.shaded.curator5.org.apache.curator.framework.api.ACLProvider

25     at java.net.URLClassLoader.findClass(URLClassLoader.java:382) ~[?:1.8.0_202]

26     at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_202]

27     at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349) ~[?:1.8.0_202]

28     at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_202]

29     at org.apache.flink.runtime.highavailability.HighAvailabilityServicesUtils.createZooKeeperHaServices(HighAvailabilityServicesUtils.java:90) ~[flink-dist-1.15.3.jar:1.15.3]

30     at org.apache.flink.runtime.highavailability.HighAvailabilityServicesUtils.createHighAvailabilityServices(HighAvailabilityServicesUtils.java:140) ~[flink-dist-1.15.3.jar:1.15.3]

31     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.createHaServices(ClusterEntrypoint.java:427) ~[flink-dist-1.15.3.jar:1.15.3]

32     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.initializeServices(ClusterEntrypoint.java:376) ~[flink-dist-1.15.3.jar:1.15.3]

33     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.runCluster(ClusterEntrypoint.java:277) ~[flink-dist-1.15.3.jar:1.15.3]

34     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.lambda$startCluster$1(ClusterEntrypoint.java:227) ~[flink-dist-1.15.3.jar:1.15.3]

35     at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_202]

36     at javax.security.auth.Subject.doAs(Subject.java:422) ~[?:1.8.0_202]

37     at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1875) ~[hadoop-common-3.0.0-cdh6.3.2.jar:?]

38     at org.apache.flink.runtime.security.contexts.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41) ~[flink-dist-1.15.3.jar:1.15.3]

39     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.startCluster(ClusterEntrypoint.java:224) ~[flink-dist-1.15.3.jar:1.15.3]

40     ... 2 more

验证二

如果使用3.5的客户端访问3.4版本服务端，将会提示 org.apache.flink.shaded.zookeeper3.org.apache.zookeeper.KeeperException$UnimplementedException: KeeperErrorCode = Unimplemented for 异常，完整堆栈如下：

 1 2022-12-08 15:10:14,935 ERROR org.apache.flink.runtime.entrypoint.ClusterEntrypoint        [] - Fatal error occurred in the cluster entrypoint.

 2 org.apache.flink.shaded.zookeeper3.org.apache.zookeeper.KeeperException$UnimplementedException: KeeperErrorCode = Unimplemented for /flink/jm_ha_metadata/application_1666841155139_0173

 3     at org.apache.flink.shaded.zookeeper3.org.apache.zookeeper.KeeperException.create(KeeperException.java:106) ~[flink-shaded-zookeeper-3-3.5.9-15.0.jar:3.5.9-15.0]

 4     at org.apache.flink.shaded.zookeeper3.org.apache.zookeeper.KeeperException.create(KeeperException.java:54) ~[flink-shaded-zookeeper-3-3.5.9-15.0.jar:3.5.9-15.0]

 5     at org.apache.flink.shaded.zookeeper3.org.apache.zookeeper.ZooKeeper.create(ZooKeeper.java:1538) ~[flink-shaded-zookeeper-3-3.5.9-15.0.jar:3.5.9-15.0]

 6     at org.apache.flink.shaded.curator5.org.apache.curator.utils.ZKPaths.mkdirs(ZKPaths.java:351) ~[flink-shaded-zookeeper-3-3.5.9-15.0.jar:3.5.9-15.0]

 7     at org.apache.flink.shaded.curator5.org.apache.curator.framework.imps.NamespaceImpl$1.call(NamespaceImpl.java:90) ~[flink-shaded-zookeeper-3-3.5.9-15.0.jar:3.5.9-15.0]

 8     at org.apache.flink.shaded.curator5.org.apache.curator.RetryLoop.callWithRetry(RetryLoop.java:93) ~[flink-shaded-zookeeper-3-3.5.9-15.0.jar:3.5.9-15.0]

 9     at org.apache.flink.shaded.curator5.org.apache.curator.framework.imps.NamespaceImpl.fixForNamespace(NamespaceImpl.java:83) ~[flink-shaded-zookeeper-3-3.5.9-15.0.jar:3.5.9-15.0]

10     at org.apache.flink.shaded.curator5.org.apache.curator.framework.imps.NamespaceImpl.newNamespaceAwareEnsurePath(NamespaceImpl.java:109) ~[flink-shaded-zookeeper-3-3.5.9-15.0.jar:3.5.9-15.0]

11     at org.apache.flink.shaded.curator5.org.apache.curator.framework.imps.CuratorFrameworkImpl.newNamespaceAwareEnsurePath(CuratorFrameworkImpl.java:618) ~[flink-shaded-zookeeper-3-3.5.9-15.0.jar:3.5.9-15.0]

12     at org.apache.flink.runtime.util.ZooKeeperUtils.useNamespaceAndEnsurePath(ZooKeeperUtils.java:729) ~[flink-runtime-1.15.2.jar:1.15.2]

13     at org.apache.flink.runtime.highavailability.zookeeper.ZooKeeperMultipleComponentLeaderElectionHaServices.<init>(ZooKeeperMultipleComponentLeaderElectionHaServices.java:85) ~[flink-runtime-1.15.2.jar:1.15.2]

14     at org.apache.flink.runtime.highavailability.HighAvailabilityServicesUtils.createZooKeeperHaServices(HighAvailabilityServicesUtils.java:96) ~[flink-runtime-1.15.2.jar:1.15.2]

15     at org.apache.flink.runtime.highavailability.HighAvailabilityServicesUtils.createHighAvailabilityServices(HighAvailabilityServicesUtils.java:140) ~[flink-runtime-1.15.2.jar:1.15.2]

16     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.createHaServices(ClusterEntrypoint.java:427) ~[flink-runtime-1.15.2.jar:1.15.2]

17     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.initializeServices(ClusterEntrypoint.java:376) ~[flink-runtime-1.15.2.jar:1.15.2]

18     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.runCluster(ClusterEntrypoint.java:277) ~[flink-runtime-1.15.2.jar:1.15.2]

19     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.lambda$startCluster$1(ClusterEntrypoint.java:227) ~[flink-runtime-1.15.2.jar:1.15.2]

20     at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_202]

21     at javax.security.auth.Subject.doAs(Subject.java:422) [?:1.8.0_202]

22     at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1875) [hadoop-common-3.0.0-cdh6.3.2.jar:?]

23     at org.apache.flink.runtime.security.contexts.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41) [flink-runtime-1.15.2.jar:1.15.2]

24     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.startCluster(ClusterEntrypoint.java:224) [flink-runtime-1.15.2.jar:1.15.2]

25     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.runClusterEntrypoint(ClusterEntrypoint.java:711) [flink-runtime-1.15.2.jar:1.15.2]

26     at org.apache.flink.yarn.entrypoint.YarnApplicationClusterEntryPoint.main(YarnApplicationClusterEntryPoint.java:112) [flink-dist-1.15.3.jar:1.15.3]

27 2022-12-08 15:10:14,943 INFO  org.apache.flink.runtime.entrypoint.ClusterEntrypoint        [] - Shutting YarnApplicationClusterEntryPoint down with application status UNKNOWN. Diagnostics Cluster entrypoint has been closed externally..

参考资料：

  1. FLINK-25146Drop support for Zookeeper 3.4

  2. ZooKeeper Version 3.4.x Compatibility

  3. https://nightlies.apache.org/flink/flink-docs-release-1.16/release-notes/flink-1.15/

Flink1.15仅支持ZooKeeper3.5/3.6的更多相关文章

  1. tomcat 6 不支持jsf2.2，仅支持jsf2.0及以下版本

    tomcat 6 不支持jsf2.2,仅支持jsf2.0及以下版本 安装tomcat8即可.

  2. 无法将类型“System.Nullable`1”强制转换为类型“System.Object”。LINQ to Entities 仅支持强制转换 EDM 基元或枚举类型。

    在一个项目中使用LINQ和EF时出现了题目所示的异常,搜索了很多资料都找不到解决办法,主要是因为EF方面的知识欠缺. 先将情况记录如下,以供以后参考. 查询主要设计两张表,由外键关联: 在进行下面的查 ...

  3. Entity FreamWork 无法创建“System.Object”类型的常量值。此上下文仅支持基元类型或枚举类型错误解决

    Entity FreamWork 无法创建“System.Object”类型的常量值.此上下文仅支持基元类型或枚举类型错误解决: 最近在开发中把我原来抄的架构里面的主键由固定的Guid改成了可以泛型指 ...

  4. WCF调试异常信息：ServiceHost 仅支持类服务类型

    "/CommonHelpServices"应用程序中的server错误. ServiceHost 仅支持类服务类型. 说明: 运行当前 Web 请求期间,出现未经处理的异常. 请检 ...

  5. DNS同时占用UDP和TCP端口53——传输数据超过512时候用tcp，DNS服务器可以配置仅支持UDP查询包

    DNS同时占用UDP和TCP端口53是公认的,这种单个应用协议同时使用两种传输协议的情况在TCP/IP栈也算是个另类.但很少有人知道DNS分别在什么情况下使用这两种协议. 先简单介绍下TCP与UDP. ...

  6. IDHTTP-HTTPS通讯方法（Indy10.2.3之前仅支持OpenSSL的0.9.8以前的版本）

    加载https的站点页面内容的时候记得在窗体上加上“IdSSLIOHandlerSocketOpenSSL1” 以及idhttp里面IOHandler为“IdSSLIOHandlerSocketOpe ...

  7. 导入数据任务（id:373985）异常， 错误信息：解析导入文件错误，请检查导入文件内容，仅支持导入json格式数据及excel文件

    小程序导入,别人导出的数据库json文件,错误信息如下: 导入数据库失败, Error: Poll error, 导入数据任务(id:373985)异常,错误信息:解析导入文件错误,请检查导入文件内容 ...

  8. nRF52832 串口仅支持偶检验

    通常在使用串口时,我们习惯是不进行奇偶检验(even/odd parity),让应用层的软件自己检验即可.如果非要硬件校验时,以下是关于NRF52832的奇偶检验配置: // 52832 仅支持 ev ...

  9. 无法创建“System.Object”类型的常量值。此上下文仅支持基元类型或枚举类型

    Entity FreamWork 无法创建“System.Object”类型的常量值.此上下文仅支持基元类型或枚举类型错误解决: 最近在开发中把我原来抄的架构里面的主键由固定的Guid改成了可以泛型指 ...

  10. java8+tomcate8仅支持TLSv1.2

    1.编辑$tomcat_home/conf/server.xml <Connector protocol="org.apache.coyote.http11.Http11NioProt ...

随机推荐

  1. Golang 和 Python 随机生成N位字符串

    Golang: func RandomString(n int) string { var letters = []byte("ABCDEFGHIGKLMNOPQRSTUVWXYZabcde ...

  2. Python基础部分：3、 pycharm的下载与使用

    目录 pycharm下载与使用 一.软件说明 二.版本说明 三.如何免费使用正式版软件 四.pycharm运行空间 五.文件后缀名 六.安装pycharm工具 七.pycharm的基本配置和PY文件的 ...

  3. Go | 函数（包）的使用

    本文通过一个实现加减乘除运算的小程序来介绍go函数的使用,以及使用函数的注意事项,并引出了对包的了解和使用. 实现加减乘除运算 传统方法实现: var n1 float64 = 1.2 var n2 ...

  4. JavaScript常用工具函数

    检测数据是不是除了symbol外的原始数据 function isStatic(value) { return ( typeof value === 'string' || typeof value ...

  5. NC-UClient下载安装应用详解

    aliases: [] tags : " #NC " summary: [UClient下载安装NCC应用详解] product: [NCX] author : [yaenli] ...

  6. C#11之原始字符串

    最近.NET7.0和C#11相继发布,笔者也是第一时间就用上了C#11,其中C#11的有一个更新能解决困扰我多年的问题,也就是文章的标题原始字符串. 在使用C#11的原始字符串时,发现的一些有意思的东 ...

  7. 第2-4-1章 规则引擎Drools介绍-业务规则管理系统-组件化-中台

    目录 规则引擎 Drools 1. 问题引出 2. 规则引擎概述 2.1 什么是规则引擎 2.2 使用规则引擎的优势 2.3 规则引擎应用场景 2.4 Drools介绍 规则引擎 Drools 全套代 ...

  8. vue3.0使用tui.image-editor图片编辑组件报错TypeError: Cannot convert undefined or null to object

    在vue3.0的项目中使用tui.image-editor组件.一直都是报错.查看报错位置发现代码 addEventListener() { Object.keys(this.$listeners). ...

  9. 聊一聊如何截获 C# 程序产生的日志

    一:背景 1.讲故事 前段时间分析了一个dump,一顿操作之后,我希望用外力来阻止程序内部对某一个com组件的调用,对,就是想借助外力实现,如果用 windbg 的话,可以说非常轻松,但现实情况比较复 ...

  10. 初次邂逅 EasyExcel

    前言 由于工作原因,有这种需求,就是把数据库中的数据导出成 Excel 表格,同时,也得支持人家用 Excel 表格导入数据到数据库.当前项目也是在用 EasyExcel,所以我不得不学啦! 以前学习 ...